Boiler-tube cleaner.



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'//////////////f///J///////////////J// R. W. lHAMANN.

BOILEE TUBE CLEANER. APPLIOATION FILED PEB. 13, 1911.

Patented Sept. 3, 1912.

-Z SHEETS-SHEET 1.

R. W. HAMANN.

`BOILER TUBE CLEANER.

APPLICATION FILED PEB. 13. 1911.

1,037,245, Patented sept.3,1912.

2 SHEETS-SHEET 2.

TED earns PATENT orrori.

RICHARD W. HAMANN, F ST. LOUIS, MISSOURI, ASSIGNOR T0 EUGENE J. FEINER, 0F ST. LOUIS, MISSOURI.

IBOIIIER-TUBE CLEANER.

Specication of Letters Patent.

' a citizen of the UnitedK States, and resident of St. Louis, Missouri, have invented certain new and useful Improvements in Boiler- Tube'Cleaners, of which the following is a lspecification containing a full, clear, andexact description, reference being had to the accompanying drawings, forming a part 'My invention relates to improvements in boiler tube cleaners and has for its-object the construction of a cleaning device which may be readily applied to the tubes in such manner as to" adapt a rocking nozzle to be employed in connection with the tubes regardless of their `inclines.

`Heretofore nozzles arranged to clean the exterior of water tubes have been mounted in the walls of the'setting and generally eX- tend` transversely of the tubes. In my improved construction the nozzle is mounted upon the tubes and parallel therewith so that the nozzle is in operative position no matter what incline the tubes maybe.

With the above purposes in view, my in vention consists incertain novel features of construction and arrangement of parts asv -will behereinafter. more fully described,

type and shows a plurality of cleaning nozzles applied to the tubes of the boiler; Fig. 2 is an enlarged, transverse, sectional elevation illustrating one of my'improved cleaners in position on the tubes, the connections with a source of fluid under pressure, a portion of the means for rocking the nozzle and certain of the parts of the connection being broken away to illustrate an automatic air inlet valve, the view being taken approximately on the line 2 2 of Fig. 1; Fig. 3 is a fragmental, sectional elevation illustrating the means whereby the nozzle may be rocked, and is taken approximately on the line 3 3 of Fig. 1; Fig. 4 is an enlarged,

transverse, sectional elevation illustrating and is taken on the line 5 5 of Fig. l; Fig. 6 isa view, similar to Fig. 5, illustrating a pair of jet openings and their relations to openings in an inner supply -tube and is taken on the line 6 6 of Fig. l; and Fig. 7 is a longitudinal, sectional elevation illustrating in detail the construction of one of the nozzles and its connection with a iuid pressure supply.

Referring by numerals to the accompanying drawings: l designatesthe furnace setting, 2 the boiler and 3 the Water tubes, all of which are of ordinary construction, the construction illustrated being that of a type known as a Babcock and Wilcox boiler furnace.

4 designates the nozzle proper which is provided with one or more rows of jet raten-tea sepas, reis.

openings 5', some of which are provided with -L-couplings 6 so that the direction of iiow un'der pressure. 9 designatesa T-coupling arranged on the pipe 8 and connected with a pipe 10 extendingrthrough the wall of the setting for connection with the inner perorated tube 7 through an elbow 11 'and a con* nection l2 between the elbow 11 and inner tube 7 of the nozzle, the connection 12 being secured for rotation with the nozzle and arranged to be rotated relative the elbow 11.

13 designates a pin for connecting the' nozzle proper with the inner tube 7 so. that the nozzle and tube 7 are held in fixed relations with each other, as required to keep`- their perforations out of registration at all times.

14 designate bearings which embrace lthe nozzles and in which bearings the nozzles may be rotated. Each of lthe bearings is4 provided with a base 15, a saddle 16, arranged to partially embrace one of the water: tubes, and the base being of sullicient length to extend to. adjacent Water tubes as required to prevent its rotation around the tubes supporting the saddle, and forsec'uring the basel in place, I have provided a hook 17 which embraces the tube opposite said saddle and is secured to the base 15 by means of a nut 18.

Secured to the connection 12 is a lever 19, which is connected by the pitman 20, and a hand lever 21 located outside the furnace setting. By a manipulation of the lever 21 the nozzle may be rocked, or partially rotated so that the positionof 'the discharging jets is changed as required to remove soot from ythe exposed portion of the boiler shell and all of the water tubes. The supply pipe 8 is provided with a valve 22, whereby the fluid under pressure may be cut o or supplied tothe nozzle as required. The end of the T-coupling 9, opposed to the end connected with the pipe 8 is provided with an automatic air inlet* valve 23 arranged to be cut off when the valve 22 is open and automatically open itself toadmit air to the nozzle when the valve 22 is closed. In other words, for the reasonvthat the nozzle isv located .in the heat ofthe furf nace, it will be necessary to permit atmosl double-tubed nozzle, I do not wish to be understood as limiting myself to this construction as it is obvious that any nozzle may be employed with practically the same results; l

One of the distinctive features of my invention isthe novel means ofsupporting the tube cleaning nozzle upon'and lengthwise of the tube, thereby' adapting the same nozfzle. to be employed on tubes arranged at various angles, for it is .well .known that,

in water tube boilers,.the tubes are arranged according to their settings. I claim: 'v .e 1. In' combination with a water tube of a 'v boiler, a cleaning noz'zle dis sed lengthwise curing the nozzle to the tube, and means for rocking the nozzle. v

3. In a tube cleaner of the class described, the combination with a rotatable nozzle connected with a sourceof iiuid under pressure, of bearings for the nozzle, and detachable means for securing the bearings to the tubes of the boiler so that the nozzle will be' substantially parallel with the tubes.

4. In a device of the classv described, the combination with a nozzle, a supply p ipe for a fluid under pressure and a swivel connection between the nozzle and said pipe, of bearings arranged to bedetachably secured to one of the water tubes of aboiler to support said nozzle parallel with said tube, and means for rotating the nozzle in said bear- In a device of the class described,`the combination with a nozzle, a' supply pipe for a fluid under pressure and a swivel con nection between the nozzle and said pipe, of bearings arranged to be detachably secured to one of the water tubes of a boiler to support .said nozzle parallel with lsaid tube,

, means for rotating the nozzle in said bearings, and means for admitting-air to the nozzle at times when said .fluid under pressure is cut or'.

6. In a boiler tube cleaner of the class described, the combination with a rotatable nozzle connected with a source of fluid under pressure and means for rotating the nozzle, a number of bearings for supporting the nozzle, integral bases for the bearings arranged to reston two or more of the boiler tubes, and meansycarriedby each of said bases, whereby the bases' maybe detachably secured to one of the boiler tubes, 'substantially as shown and for the urposes stated.v In testimony whereof, I ave slgned my name to this specification, in presence of ,two "90 subscribing wltnesses. y RICHARD W. HAMANN. Witnesses:v

E. L. WALLACE, N. G. BUTLER. 

